These are surface mount resistors, the Resistive Element is Thick Film on Alumina Substrate. We can get Voltage Ratings upto 600 Volts and 50 Gigohms Values. Low noise high stability resistors.
Specialized in the design and manufacturing.of thick film, high voltage, high precision resistor . High voltage resistors and high value resistors.
Ohmcraft – Thick Film Resistors
SM Chip Resistors go to values in giga-ohms. The Technology – Micropenned serpentine patterned resistors, engineered for ultra precision.
SM Series High-Value Resistors – Ohmcraft
“Our patented Micropen precision printing technology provides ultra precision, thick-film high ohmic value, surface mount resistors. Ohmcraft’s Micropenned serpentine patterned resistors produce superior electrical characteristics:”
Ohmcraft ia a division of Micropen Technologies Corporation
93 Paper Mill St., Honeoye Falls, NY 14472
Riedon has been providing original equipment manufacturers with high-precision, wirewound resistors and committed customer service since 1960.
Wirewound, Thick & Thin Film, and also Foil resistive products used in industries such as Industrial Automation, Aerospace, Military and Instrumentation.
Riedon – High Precision Resistors
Custom RTD elements, Power resistors as heating elements. Compensation Resistors, Metal and Thick Film networks and arrays.
These Precision Shunt Resistors are designed for systems which have a fast changing electrical load. It has a Heatsink and is encapsulated in epoxy. The substrate is Alumina for Good Heat Transfer but with Electrical Insulation. It is a Resistor formed by a NiCr Foil. (Like Nichrome).
Precision Resistors – UNS 4-T220 – Riedon
- Resistance from 0.2 Ohm to 80 Ohms
- Power Rating to 15 Watts
- Resistance Tolerances to ±0.01%
- TCR to ±1ppm/K
- Load Stability to 0.01%
Resistors are probably the most common and well known of all electrical components. Applying a resistor to a circuit normally requires (1) calculating the nominal values needed in the circuit application (resistance, power rating, etc.) then (2) developing acceptable tolerances for the resistor that ensure it will function properly in all extremes of the application.
Read up the “Temperature dependence and TC” – The absolute ohmic value of a resistor is temperature-dependent. Also the “Definition of terms in the specifications of Resistors.”
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